Metal-burnishing machine



w. s. Smm.' M'ETAL BURNISHINGMACHINE. APPLICATION FILEDJUNE l`9 |919.

Patented Deo.4 2

Sffforzzey v UNITED STATES PATENT OFFICE.

y WILLIAM B, SMITH,

or NoRWooD, oIIIo.

METAL-BURNISHING MACHINE.

l To all whom it may concern:

` low article.

` j Beit known `that I, WILLIAM BQ SMITH, a citizen of the United States, and a resident ofthe city of Norwood, in the county of `Hamilton andState of Ohio, have invented certain new and useful Improvements in `Metal-Burnishing\ Machines, of

which the following is a full, clear, and ex" act description, reference being had `to the drawings" accompanying this specification.

My inventlon relates to a machine for re taining a concave oryhollow piece of ware,

of any character which 1s to be burnished, as `by the passage 4of a-revolving brush or the like over the inner surface otsuch holmay be burnished on my n1achine,"are `the "concave reflectors oi? automobilelamps, and the showing in the drawings is of a` machine specially adapted for doing this wort:`

Among the objects `of my invention are the provisionof a holder for .hollow ware, which will revolve it in contact `with a burnishingtool, and at the same time impart to it a rcciprocatory movement, so as tocause the burnishing brush or instrument to enter the article, and burnish `it at the base as well asthelsides. Another object is to provide a `device of the above "character which operates with a master member, that controls the reciprocatory movement of the holder portion of the machine, `whereby a large varietyoffodd shapesof articlesmay l be burnished on the same machine, by the insertion of a diil'erent master member.

" operation of fthe entire device from one source opowerffand provide for the easy withdrawal of the article holder without changing the adjustment of the bed of the a very vlarge expense, since their life vvhen in use is comparatively shorts` In my ma-` chinethe `object is to mechanically acconn` plish the motions `which an operator would make if handling the article to be burnished so that themachine is capable oi use with any usual bnrnishing wheel. The bed of Among other articles which y speciaeatioof Lettersratnt. Patented Dec, 27, 1921. Appneatioamed :une 19, 191e. serial No. 305,271. l

burnishing wheel it may be desired to use.

The above objects, and other advantages `to be noted I accomplish by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the dra-wings,

Figure 1 is a side elevation of the machine.

Fig. 2 is atop plan view of a portion thereof. l

Fig. 3 is a detail elevation of the master earn and its mounting.

The machine as shown in the example selected `for illustration of the invention has the legs or standards l, l, joined together `by a brace 2 and tie rods 3. The standards are dovetailed to provide grooves Within which slide the pillars 4 of the bed 5 of the machine. The particular detail of this dovetailed groove onvthe standards and the dovetail on the pillars 4 has not been considered a necessary item for showing in the drawings..

A screw 6 which seats at its upper end in the bed of the machine is controlled by a hand wheel 7 suitably held in connection with the brace 2, said screw having its lower engagement in a threaded hole in the `center 8 of the brace. This mechanism rovides for vertical adjustment of the be of the machine on the standards and enables f V the operator to set the machine for use with Also` I provide in my machine for the` whatever height of burnishing tool he is re, uired to employ.

'he sliding table 9 of the machine, is slidably mounted lengthwise of the bed, in do'xetails 10, and the whole table may be moved lengthwise of the bed'by any desire/df operating handle such as the lever 11, plvotedxto the `machine base, and engaging between pins 12 on the table. This method ci" moving the table is intended as merely a simple one `for illustrative purposes as 1s also the method shown of elevating the bed.

Once the bed is properly positioned fon heightNoi the burnishing implement the movement oi the table permits the work to be inserted and Withdrawn from operative position Without altering the position of the bed in any respect.

Mounted on track 13V on the table is a sliding plate 1e which carries the'tworkV holder and the master cam. The work holder itself is rotated by means preferably of aflexible shaft all as will be below described in detail.

On suitably journaled arms 15 on the standards 14a of the plate 14 ,is.mountedby Ameans of a suitable journal 16,"the work holder ,or chuck, 17. This chuck has a rigid Y rod-18 passing through the journal 16, and

this rodis connected to a flexible shaft 19, which is driven during` the operation of the machineJ lt -is inthe present drawing, shown 1 as aac-hack for 'holding the reflector of an tz iiitomobile lamp, and in connection with it l5 is (shown retaining' arm 20, which is secured on thev ,upperv side i of the chuck ]ournal, and

has a -iinger 21 rprojecting over the mouth of the :chuck to prevent ay reflector from slipping away therefrom. 19may be made of rigid material having two 'universal Vj oints 19a;r

rlhe master cam, which is to be shaped as required, for everyparticular fpiece or work,

is inthe-adaptation selected for illustration as emi ellii'a'ticallpiece 22 swung by means of a central boss 23, on a pivot bolit'2ll. The

.. ypivrrtfbolt is held in an angle piece 25, -which -is mounted byY means of a plate 26 to theends vofthe arms v15. Set-screws 27 and 28 mount- .ed in the angle piece, bear against the two ends ofthe yCenn'thereby adjusting its posi` tion. Y A

v, Mounted at :the end of thesliding table bel Y neaththe cam .is a roller 29 on which the cam bears, thereby regulating the position of the .chuckor Work holder,since the arms 15 with a'worm 31 Awhich meshes `a gear 34 which meshes with another gear I 1 35 journaled beneath it on the table.V The are journaled and the weight of the chuck v.and arms will keep the camor master in abutmeltagainst the roller.

1f itis desiredV to operate the machine by f. a separate motor, a motor 30 is provided suitably mounted on theltable of the machine, Y

.the rotary shaft of the motor being provided l v with a worm wheel 32;. The worm wheel shaft 83, carries gear 35 is connected to the flexible shaft Vgis-which rotates the chuck.

The gear VSehas thereonV abeveled pinion k.or gear 36 which meshes with a large beveled gear. 37, also journaled onV the table.V rllhis last.gear-'carriesa crank '88, which is conne'cted to the shaftvthat mounts the N.arms 15 tion of the .gear? therefore, imparts reciponthe boss ofthe sliding plate. The opera-l rocatory motion to the sliding plate 14,

.chuck up and down.

v -gfuide y@mear 37;,an`d the crank pivotal mounting on a dovetail sliding` block vwliiieh moves the chuck forward Vand back,

thereby forcing the cam or master to Vride over theroller, and thereby oscillating the 39 may be mounted on the face V ofthe 88 will then have a 4i() in nsaid. guide. The .blockV .40 is controlled lf desired, the shaft' lf desired, adovetailed by a screw 4l, and permits lcontrol of the eccentricity of the crank 38, and thus of the ,reciprocal movement of the chuck.

It -can be readily observed that the shape of the cam' regulates the up and down movement .of `the chuck, and that any desired changed shape would impart any desired changed up and down motion.

Havingthen elevated the bed of the Inachine to the height L of the burnishinp,- implement, usually a rotating brush, and havingf positioned the standards-a suilicient distance ra-way from `thetool so that the moetiorward position of the chuck will .iust bring' the brush or .other implement to the base of thc reflector or other articles that is :to be bullcd, or burnished,the'operator has but to provide the proper master cam for any desired type of work, and thereafter has but to insert and withdraw the articles to be buifed. To do this `he pulls over the table controlling lever to withdraw the chuck from Athe burnishing implement, removes the finished article and inserts another, thereafter thrusting the controlling lever forwardto the limit of its movement. Any sort of stop 3S, will serve to Vlimit the forward movement of this controlling lever.

It is not Adesired because of failure to mention equivalent structure in the above description'to limit the scope of my invention to theprecise structure shown and described. There is a wide variety of uses to which my machinemay be put,'and l do not wish to he limited to the use described herein. For example with a concave cam, a convex piece of work canbe buffed or burnished or lateral cam couldbe usedfto give a lateral instead of an upand down-oscillation.

Having thus described my invention what I claim as new and desire to secure by Letters .Patent is 1. In a machine for bufling or the like, the combination with a work holder, of automatic meansvto impart reciprocatory motion thereto, automatic means kto enforce curvi- `linear motion thereto and automatic means for *imparting rotary motion thereto, all of said motions being simultaneous.

2. In a machine 'of the character described the combination with a work holder of means to impart reciprocatory motion thereto, and a master element to enforce a desired curvilinear motion thereto simultaneously to the reciprocatory motion.

3. Ina .machine of the character described, the combination with a reciprocated member, of a work holder journaled thereto, and a master member comprising a rest for the work holder, whereby the movement of said reciprocated member will impart a combined oscillatory and 4reciprocatory motion.

' .4, In a machine of the character described the combination with'a work holder or means to impart reciprocatory motion thereto, and

a master element to enforcea desired curvilinear motion thereto simultaneously tothe reciprocatory motion, and means for simultaneously rotating said work holder.

5. In a machine of the character described the combination with a slidable table, of a source of power mounted thereon, a rotary element operated from said motor, and a reciprocated element operated also from said motor, of a work holder simultaneously acted upon by said two elements, and means for i movably mounting the work holder on the reciprocated element, so as to permit of an i oscillatory movement of the same thereon,

6. In a machine of the character described, work `holder and automatic means for simultaneously rotatin reciprocating and vertically oscillating le same, to enforce a curvilinear path.

7. In a machine of the character described a work holder and means for simultaneously and automatically rotating, reciprocating and vertically oscillating the same so as to enforce a curvilinear path, a standard for said machine, and slidable means on said standard foimounting the workholder and its operating means` 8. In a machine of the character described, the combination with a revoluble holder for an article to be treated, of a pivotal arm device for mounting said holder, means for reciprocating the same, and a master element to provide a resting point for the holder and over which the holder moves in its reciprocating path, whereby the face of said master `element controls the line of motion of the work holder.

9. In a machine of the character described,

sired curvilinear motion thereto simultaneously to the reciprocatory motion, and means for adjusting the reciprocal movement of the holder for length of movement.

10. In a machine of the character described, the combination with awork holder, of means to'impart reciprocatory motion thereto, `and amaster element to enforce a desired curvilinear motion thereto simultaneously to the reciprocatory motion, and a table for all of the above named parts, said table being movably mounted to permit of moving all of said parts toward and away from 'a point of work.

11. In a machine of the character described, the combination of a support, a motor on the support, a slidable member operated by said motor, a revoluble work holder movably mounted on the slidable member and operated by said motor, and means for imparting rectilinear motion to said holder in addition to the movement imparted by the slidable member whereby a curvilinear path is enforced, for the purpose described. l

12.'.In a machine of the character described, the combination with awork holder, of means to impart reciprocatory motion thereto, and a master element to enforce a `desired curvilinear' motion thereto simultaneously to the reciprocatory motion, and means for adjusting the position of said master member to vary said line of motion.

WILLIAM B. SMITH. 

